Apple's withdrawal of technology may end cloud hanging over $18 billion smartwatch business.
Apple to Remove Blood-Oxygen Sensor From Watch to Avoid U.S. Ban::Tech giant’s withdrawal of technology may end cloud hanging over $18 billion smartwatch business
Based on the article and other comments about the dispute, it seems like a justified legal move, but I hope they come around to an agreement regarding existing devices, rather than something insane, such as disabling the functionality on existing consumer devices.
I was given an Apple Watch in 2017. I replaced that (functioning just fine) watch about a year ago with a model with a pulse oximeter, specifically because I wanted the feature.